library;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

import "dart:async";

class X extends core::Object {
  final field dynamic x;
  final field dynamic y;
  constructor •(dynamic x, dynamic y) → self::X
    : self::X::x = x, self::X::y = y, super core::Object::•()
    ;
  method toString() → dynamic
    return "X(${this.{self::X::x}}, ${this.{self::X::y}})";
}
class Y extends core::Object {
  synthetic constructor •() → self::Y
    : super core::Object::•()
    ;
  method f(dynamic _) → dynamic {}
}
static method f1() → asy::Future<core::List<core::Object>> /* originally async */ {
  final asy::_AsyncAwaitCompleter<core::List<core::Object>> :async_completer = new asy::_AsyncAwaitCompleter::•<core::List<core::Object>>();
  asy::FutureOr<core::List<core::Object>> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L1:
      {
        :return_value = <dynamic>[1];
        break #L1;
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.start(:async_op);
  return :async_completer.{asy::Completer::future};
}
static method f2() → core::List<core::Object>
  return <dynamic>[2];
static method f3() → asy::Future<core::Object> /* originally async */ {
  final asy::_AsyncAwaitCompleter<core::Object> :async_completer = new asy::_AsyncAwaitCompleter::•<core::Object>();
  asy::FutureOr<core::Object> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L2:
      {
        :return_value = 3;
        break #L2;
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.start(:async_op);
  return :async_completer.{asy::Completer::future};
}
static method foo() → asy::Future<self::X> /* originally async */ {
  final asy::_AsyncAwaitCompleter<self::X> :async_completer = new asy::_AsyncAwaitCompleter::•<self::X>();
  asy::FutureOr<self::X> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  dynamic :saved_try_context_var0;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L3:
      {
        final dynamic #t1 = new self::Y::•();
        [yield] let dynamic #t2 = asy::_awaitHelper(self::f1(), :async_op_then, :async_op_error, :async_op) in null;
        final dynamic #t3 = #t1.f(:result);
        final dynamic #t4 = #t1.f(self::f2());
        [yield] let dynamic #t5 = asy::_awaitHelper(self::f3(), :async_op_then, :async_op_error, :async_op) in null;
        :return_value = new self::X::•(#t1, :result);
        break #L3;
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.start(:async_op);
  return :async_completer.{asy::Completer::future};
}
static method main() → asy::Future<void> /* originally async */ {
  final asy::_AsyncAwaitCompleter<void> :async_completer = new asy::_AsyncAwaitCompleter::•<void>();
  asy::FutureOr<void> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  dynamic :saved_try_context_var0;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L4:
      {
        [yield] let dynamic #t6 = asy::_awaitHelper(self::foo(), :async_op_then, :async_op_error, :async_op) in null;
        core::print(:result);
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.start(:async_op);
  return :async_completer.{asy::Completer::future};
}